The rear wheel hub nut for the Citroën 2CV is a crucial fastening component that secures the rear wheel in place. This nut is specifically designed to meet the unique demands of the Citroën 2CV. It ensures the wheel bearing is properly fixed and protected, contributing to the vehicle's safety and smooth operation. It is essential to use the correct specifications during replacement since improper fastening can lead to wheel wear or failure. Ensure compatibility with your model before purchasing or replacing parts.